Originally Posted by
Mon the fish
Yep, as per Big Gordy's last post above, they connect the strut section of the chassis to the front section. They do make a difference, and for £20 you can't go wrong. 10 mins to fit as well. R53's built after late 2003 have the holes pre-drilled in the chassis, for earlier cars you have to drill them yourself.
If the cabrio flexes at the front of the chassis enough to need braces, the hard top will as well. These and the OMP lower are all you really need IMO. A top brace won't make a massive difference once they are fitted.